org.apache.sysds.hops

## Class DnnOp

- java.lang.Object
- - org.apache.sysds.hops.Hop
  - - org.apache.sysds.hops.MultiThreadedHop
    - - org.apache.sysds.hops.DnnOp

- All Implemented Interfaces:
    ParseInfo

      public class DnnOp
      extends MultiThreadedHop

- - ### Field Summary

    - ### Fields inherited from class org.apache.sysds.hops.Hop

      `_beginColumn, _beginLine, _endColumn, _endLine, _filename, _text, CPThreshold`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `DnnOp(String l, Types.DataType dt, Types.ValueType vt, Types.OpOpDnn o, ArrayList<Hop> inp)` Create a hop from the builtin expression

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `boolean` | `allowsAllExecTypes()`
    `void` | `checkArity()` Check whether this Hop has a correct number of inputs.
    `Object` | `clone()`
    `boolean` | `compare(Hop that)`
    `Lop` | `constructDnnLops(Types.ExecType et, ArrayList<Hop> inputs)`
    `Lop` | `constructLops()`
    `Types.OpOpDnn` | `getOp()`
    `String` | `getOpString()`
    `boolean` | `isGPUEnabled()` In memory-based optimizer mode (see OptimizerUtils.isMemoryBasedOptLevel()), the exectype is determined by checking this method as well as memory budget of this Hop.
    `boolean` | `isMultiThreadedOpType()`
    `boolean` | `isStride1Pad0()`
    `void` | `refreshSizeInformation()` Update the output size information for this hop.
    `void` | `setOp(Types.OpOpDnn op)`

    - ### Methods inherited from class org.apache.sysds.hops.MultiThreadedHop

      `getMaxNumThreads, setMaxNumThreads`

    - ### Methods inherited from class org.apache.sysds.hops.Hop

      `addAllInputs, addInput, checkAndSetForcedPlatform, checkAndSetInvalidCPDimsAndSize, clearMemEstimate, colsKnown, compressedSize, computeBoundsInformation, computeBoundsInformation, computeBoundsInformation, computeMemEstimate, computeSizeInformation, computeSizeInformation, computeSizeInformation, constructAndSetLopsDataFlowProperties, createOffsetLop, dimsKnown, dimsKnown, dimsKnownAny, getBeginColumn, getBeginLine, getBlocksize, getCompressedSize, getDataCharacteristics, getDataType, getDim, getDim1, getDim2, getEndColumn, getEndLine, getExecType, getFilename, getForcedExecType, getHopID, getInput, getInput, getInputMemEstimate, getInputOutputSize, getIntermediateMemEstimate, getLength, getLops, getMemEstimate, getName, getNnz, getOutputMemEstimate, getParent, getPrivacy, getSparsity, getSpBroadcastSize, getText, getUpdateType, getValueType, hasCompressedInput, hasFederatedOutput, hasMatrixInputWithDifferentBlocksizes, hasValidCPDimsAndSize, isCompressedOutput, isFederated, isFederatedOutput, isMatrix, isMemEstimated, isOutputEmptyBlocks, isRequiredDecompression, isScalar, isTransposeSafe, isVisited, printErrorLocation, refreshColsParameterInformation, refreshColsParameterInformation, refreshMemEstimates, refreshRowsParameterInformation, refreshRowsParameterInformation, requiresCheckpoint, requiresCompression, requiresLineageCaching, requiresReblock, requiresRecompile, resetExecType, resetRecompilationFlag, resetRecompilationFlag, resetVisitStatus, resetVisitStatus, resetVisitStatus, resetVisitStatusForced, rowsKnown, setBeginColumn, setBeginLine, setBlocksize, setCompressedOutput, setCompressedSize, setDataType, setDim, setDim1, setDim2, setEndColumn, setEndLine, setExecType, setFederatedOutput, setFilename, setForcedExecType, setLops, setMemEstimate, setName, setNnz, setOutputEmptyBlocks, setParseInfo, setPrivacy, setRequiresCheckpoint, setRequiresCompression, setRequiresCompression, setRequiresDeCompression, setRequiresLineageCaching, setRequiresReblock, setRequiresRecompile, setText, setUpdateType, setValueType, setVisited, setVisited, someInputFederated, toString`

    - ### Methods inherited from class java.lang.Object

      `equals, getClass, hashCode, notify, notifyAll, wait, wait, wait`

    - ### Methods inherited from interface org.apache.sysds.parser.ParseInfo

      `ctxAndFilenameToParseInfo`

- - ### Constructor Detail

    - #### DnnOp

          public DnnOp(String l,
                       Types.DataType dt,
                       Types.ValueType vt,
                       Types.OpOpDnn o,
                       ArrayList<Hop> inp)

      Create a hop from the builtin expression
      Parameters:
        `l` - name of the hop
        `dt` - datatype (only supports matrix datatype)
        `vt` - valuetype (only supports matrix valuetype)
        `o` - type of this hop
        `inp` - input hops

  - ### Method Detail

    - #### checkArity

          public void checkArity()

      Description copied from class: `Hop`
      Check whether this Hop has a correct number of inputs. (Some Hops can have a variable number of inputs, such as DataOp, DataGenOp, ParameterizedBuiltinOp, ReorgOp, TernaryOp, QuaternaryOp, MultipleOp, DnnOp, and SpoofFusedOp.) Parameterized Hops (such as DataOp) can check that the number of parameters matches the number of inputs.
      Specified by:
        `checkArity` in class `Hop`

    - #### getOp

          public Types.OpOpDnn getOp()

    - #### getOpString

          public String getOpString()

      Specified by:
        `getOpString` in class `Hop`

    - #### isGPUEnabled

          public boolean isGPUEnabled()

      Description copied from class: `Hop`
      In memory-based optimizer mode (see OptimizerUtils.isMemoryBasedOptLevel()), the exectype is determined by checking this method as well as memory budget of this Hop. Please see findExecTypeByMemEstimate for more detail. This method is necessary because not all operator are supported efficiently on GPU (for example: operations on frames and scalar as well as operations such as table).
      Specified by:
        `isGPUEnabled` in class `Hop`
      Returns:
        true if the Hop is eligible for GPU Exectype.

    - #### isMultiThreadedOpType

          public boolean isMultiThreadedOpType()

      Specified by:
        `isMultiThreadedOpType` in class `MultiThreadedHop`

    - #### constructLops

          public Lop constructLops()

      Specified by:
        `constructLops` in class `Hop`

    - #### setOp

          public void setOp(Types.OpOpDnn op)

    - #### isStride1Pad0

          public boolean isStride1Pad0()

    - #### constructDnnLops

          public Lop constructDnnLops(Types.ExecType et,
                                      ArrayList<Hop> inputs)

    - #### allowsAllExecTypes

          public boolean allowsAllExecTypes()

      Specified by:
        `allowsAllExecTypes` in class `Hop`

    - #### refreshSizeInformation

          public void refreshSizeInformation()

      Description copied from class: `Hop`
      Update the output size information for this hop.
      Specified by:
        `refreshSizeInformation` in class `Hop`

    - #### clone

          public Object clone()
                       throws CloneNotSupportedException

      Specified by:
        `clone` in class `Hop`
      Throws:
        `CloneNotSupportedException`

    - #### compare

          public boolean compare(Hop that)

      Specified by:
        `compare` in class `Hop`

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